Tire for vehicle-wheels.



PATENTED SEPT.19, 1905.

v J. W. mms; TIRE FOR VEHICLE WHEELS.

APPLICATION FILED 1330.30 1904.

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APPLICATION FILED 1730:30, 1904 2 SHEETS-SHEET 2.

UNITED. STATES PATENT OFFICE. I r

JOSHTTA JONES, OF HARRISBURG, PENNSYLVANIA.

. I I TIRE. FOR VEHICLE-WHEELS. I

Patented Sept. 19, 1905.

Application filed December 30, 1904- Serial No. 238,948.

To aZZ whom it may concern: I

Be it known that I, JOSHUA W. J ONES, a citizen of the UnitedStates,residing at Harrisburg, in the county of Dauphin and State ofPennsylvania, have invented certain new and useful Improvements in Tiresfor Vehicle- Wheels; and I do hereby declare the following to be a full,clear, and exactdescription of the same, reference being had to theaccompanying drawings, forming a part of this s'pecification, and to theletters of reference marked thereon.

This invention relates to improvements in I elastic tires forvehicle-wheels, the objects of; the invention being to provide anelastic mei tallic tread-surface capable of withstanding hard wear andheavy strains and at the same time of such character as to afford amaxi' mum traction and resistance to slipping or skidding.

Prlmarily the inventlon consists in a tire embodying an inclosingmetallic casing formed by coiling a wire, rod, or strlp into anirregularspiral or helix, the irregularities being in the form of bends moreacute than the-curvature of the spiral or helix and the bends inadjacent convolutions being out of alinement with each otherlongitudinally of the tire.

The invention further consists in certain novel details of constructionand combinationsand arrangements of parts, all as will benow described,and pointed out particularly in the appended claims.

Referring to the accompanying drawings matic views of six-sided mandrelson whichthe rod, strip, or wire may be wound. Fig. 9 is a plan of asection of tirewhich was wound on a five-sided mandrel. Figs. 10 and 11are views of five-sided mandrels. Fig. 12 is a detail of a joint in theretainer.

Similar letters of reference in the several figures indicate like parts.

In said drawings the letter A indicates a section of a wheel such as maybe used on an autovehlcle and having a concave rim or felly B,preferably made sectional to permit of the ready. removal or placing ofthe tire or treadsurface. The tread-surface of the tire in accordancewith this invention'is formed of a section or sections of rod, strip, orwire wrapped closely into substantially spiralform; but instead of aregular formation each convolution is provided with kinks or bends C,constituting projections or protuberances above the general contour ofthe tire, and the -bends or projections on succeeding convolutions areout of line with each other longitudinally of "the tire. The effect ofsuch construction is to form a tire the wearing-surface of which ispractically composed entirely of a succession of slight projections,which will grip of the tire on the road and at the same time therequisite elasticity will be afforded bythe resiliency of therod, strip,or wire itself.

The particular method of forming the tire is immaterial; but it ispreferred to wrap the rod, strip, or wire spirally about aproperlyshaped mandrelsuch, for instance, as shown in Figs. 7 and8allowing the inherent resiliency of the metal to uncoil the rod, strip,or wire sufficiently to move the more angular portions or projectionsout of alinement with each other. Practically it is found that theresiliency of the metal will cause successive convolutions to uncoilsomewhat less than the distance between two bends or projections, andhence the tread-surface of the tire will have the projectionsdistributed over its entire surface. Obviously the number of bends orprojections in each convolution may be greatly varied and from three toanynurnher may be successfully employed. If desired, the projections maybe made more angular or with concave sections between the bends. as bywinding the rod, strip, or wire on a mandrel having concave faces. (SeeR and S, Figs. 4 and 8.) It is also obvious that the cross-section ofthe rod, strip, or wire may be varied to suit particular requirements,(thus in Fig. 5 it is shown square;) but 1 do not wish to be limited tothe use of rod, strip, or wire of any particular cross-sectional-form.The tread-surface of the tire greatly increase the wearing qualities andthus formed has a general cylindrical cross- IIO and elastic to causethe vehicle to ride smoothly, even though the surface of the road berough and irregular.

The concavity of the felly should approximately conform to the curvatureof the tire; but an elastic backing or pad F is preferably interposedbetween the tire and felly to give additional elasticity and afford aseat for the convolutions of the rod, strip, or wire forming thetread-surface. This elastic pad may be of rubber, fibrous, or othermaterial and cellular or not, as desired, the only requisites being thatit shall be capable of being secured in the felly and afford an elasticseat for the tire.

The tread-surface formed as described may be used as a cover for anysuitable internal tubular, elastic, or cellular filling. Thus in thedrawings an internal elastic tube G is shown, which, besides affordingresiliency, will prevent dirt from working between the convolutions andaccumulating within the tire.

To hold the tire in place, an internal band or retainer may beemployed-such, for instance, as the tubular band or ring H, the ends ofwhich are held together by being overlapped, (see sleeve 0,) throughwhich overlapped parts a screw-bolt I may be passed. The bolt ispreferably itself tubular, so as to permit of its being slipped on awire or rod, which latter may be passed between the convolutions of thetire to direct the bolt into its proper aperture in the retainer.

The retainer may be located inside of the elastic internal tube, as inFigs. 1, 2, and 3,

or the tube or filling may be outside of the retainer, as in Fig. 4C. Inany event a retainer of relatively large cross-section and tubular ispreferred, so as to afford great strength, a wide bearing, andresistance to lateral deflection.

While the tread-surface is preferably formed by a single length of rod,strip, or wire with the ends united, preferably by being scarfed andriveted, as atKin Fig. 6, it may be formed of a number of sectionsunited.

In use should the tread -surface become worn it may be turned to presenta new surface to the outside and the tire reassembled in the rim.

Having thus described myinvention, what I claim as new, and desire tosecure by Letters Patent, is

1. A vehicle-tire embodying a tread-surface formed of metal strip orWire extending around the tire, with projections thereon, theprojections on adjacent sections being out of line longitudinally of thetire; substantially as described.

2. A vehicle-tire embodyinga tread-surface formed of metal spirals withprojections thereon, the projections on adjacent convolutions being outof alinement longitudinally of the tire; substantially as described.

3. A vehicle-tire embodyinga tread-surface formed of metal strandsextending around the tire and having projections thereon, theprojections on adjacent strands being out of alinement with each otherlongitudinally of the tire; substantially as described.

4. A vehicle-tire embodying a tread-surface formed of a spiral of metalhaving projections on each convolution, the projections on adjacentconvolutions being out of alinement with each other longitudinally ofthe tire; substantially as described.

5. A vehicle-tire embodying a metal spiral having bends therein moreangular than the general transverse curvature of the tire, the bends inadjacent convolutions being out of alinement with each otherlongitudinally of the tire; substantially as described.

6. Avehicle-tire embodying a tread-surface formed of a metal spiralhaving its convolutions close together and extending transversely of thetire, an elastic filler located within the spiral and a retainer for thespiral formed by a tubular ring; substantially as described.

7. A vehicle-tire embodyinga tread-surface formed of a metal spiralhaving its convolutions close together and with projections thereon, theprojections on adjacent convolutions being out of alinementlongitudinally of the tire and an elastic filler located within thespiral; substantially as described.

8. A vehicle-tire embodying a tread-surface formed of a metal spiral anda retainer forsaid spiral formed by a tubular ring having overlappingends connected by a transverse bolt; substantially as described.

9. A vehicle-tire embodying a tread-surface formed of a metal spiral anda retainer for said spiral formed by a tubular ring having overlappingends connected by a transverse tubular bolt; substantially as described.

JOSHUA W. JONES. Witnesses:

JOHN PAUL JONES, WILLIAM C. ARMoR.

